I am currently learning and I wanted to ask, how can I change a text (string) from inside an app I am reversing? For example "To begin, please login". I have found the XREF to the string location but I don't know how to change it. I am using Hopper Disassembler on mac.

1 Answer 1


You can modify strings or other bytes within the hex editor (⇧⌘H) or click on the hex edit panel.

hexedit panel

Then modify whatever you want

edit bytes You'll need to write a new executable back (⇧⌘E) if you want to save it. Also, be aware that if it is a signed binary, you will need to remove any code signature or resign it as the binary won't match the signature after a change.

  • 1
    @cimmaron could you please explain with screen shots. Commented Jun 28, 2017 at 18:04
  • Is it the string length limited?
    – Alice Chan
    Commented Jan 28, 2019 at 10:30

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